Home / 82,170.95-123,256.52-19,841.45

Finding the Fourth Proportional to 82,170.95, 123,256.52 and 19,841.45

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Solution

The fourth proportional to 82,170.95, 123,256.52 and 19,841.45 is: 29,762.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,170.95 : 123,256.52 = 19,841.45 : x
  2. Step 2: Convert to fraction form
    82,170.95/123,256.52 = 19,841.45/x
  3. Step 3: Cross multiply
    82,170.95x = 123,256.52 × 19,841.45
  4. Step 4: Simplify right side
    82,170.95x = 2,445,587,363.26
  5. Step 5: Solve for x
    x = 2,445,587,363.26/82,170.95
  6. Step 6: Final answer
    x = 29,762.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.